The inductor includes a coil including a winding portion formed by winding a conductor wire having an insulating coating and lead-out portions extended from the winding portion, and a body made of a magnetic portion including magnetic powder and resin, and containing the coil, and outer electrodes on a body surface. The body includes a mounting surface, an upper surface opposite the mounting surface, a pair of opposing end surfaces adjacent to the mounting and upper surfaces, and a pair of opposing side surfaces adjacent to the mounting surface, the upper surface, and the end surfaces. End portions of the lead-out portions respectively have a flat portion exposed from the body surface, a covered portion adjacent to the flat portion at at least one of the end portions covered with the magnetic portion, and the flat portion is electrically connected to the outer electrode.

The inductor includes a coil including a winding portion formed by winding a conductor wire having an insulating coating and lead-out portions extended from the winding portion, and a body made of a magnetic portion including magnetic powder and resin, and containing the coil, and outer electrodes on a body surface. The body includes a mounting surface, an upper surface opposite the mounting surface, a pair of opposing end surfaces adjacent to the mounting and upper surfaces, and a pair of opposing side surfaces adjacent to the mounting surface, the upper surface, and the end surfaces. End portions of the lead-out portions respectively have a flat portion exposed from the body surface, a covered portion adjacent to the flat portion at at least one of the end portions covered with the magnetic portion, and the flat portion is electrically connected to the outer electrode.

An inductor in which the external electrode is constituted by a conductive resin layer formed on a surface of a core effectively prevents peeling between the core and the external electrode. The inductor includes a core containing magnetic particles and a resin, a conductor embedded in the core, a conductive resin layer disposed on a surface of the core so as to be in contact with an end portion of the conductor exposed from the core, and a plating layer formed on the conductive resin layer. The plating layer is formed so as to extend to the surface of the core beyond a range in which the conductive resin layer is disposed.

Disclosed herein is a coil component that includes a magnetic element body, a coil conductor embedded in the magnetic element body and having an end portion exposed from the magnetic element body, and a terminal electrode connected to the end portion of the coil conductor. The terminal electrode includes a conductive resin contacting the end portion of the coil conductor and containing conductive particles and a resin material, and a metal film covering the conductive resin. The conductive resin including a first conductive resin contacting the end portion of the coil conductor, and a second conductive resin contacting the metal film without contacting the end portion of the coil conductor. A specific surface area of the conductive particles contained in the first conductive resin is larger than that of a conductive particles contained in the second conductive resin.

An inductor with the special-shaped structure includes an inductor main body and a pair of supporting legs fixed below the inductor main body, wherein the pair of supporting legs is conductors and is electrically connected to a pair of electrodes of the inductor main body, and the pair of supporting legs is configured to support the inductor main body during installation, so that a gap space is left below the inductor main body. Due to the unique structural design of the inductor in the present invention, the utilization ratio of the area of the PCB can be effectively increased, and the inductor is particularly suitable for very-high-density component installation on the PCB during power application. Moreover, by changing relative positions of the supporting legs, lower cavities with different sizes may be formed below the inductor main body, thereby facilitating optimal design for meeting different demands.

Coil structures and methods of forming are provided. The coil structure includes a substrate. A plurality of coils is disposed over the substrate, each coil comprising a conductive element that forms a continuous spiral having a hexagonal shape in a plan view of the coil structure. The plurality of coils is arranged in a honeycomb pattern, and each conductive element is electrically connected to an external electrical circuit.

Coil structures and methods of forming are provided. The coil structure includes a substrate. A plurality of coils is disposed over the substrate, each coil comprising a conductive element that forms a continuous spiral having a hexagonal shape in a plan view of the coil structure. The plurality of coils is arranged in a honeycomb pattern, and each conductive element is electrically connected to an external electrical circuit.

A winding assembly for a transformer, in particular with a medium operating voltage of Um≥79.5 kV, wherein the winding assembly includes at least one winding, which ends in a winding conductor, where the winding conductor is connected to a switching line, which is configured to interconnect the winding to other windings, and where the connection of the switching line to the winding conductor is arranged inside the winding so as to reduce the danger of partial discharges and flashovers in the high-voltage end-line region for high-temperature applications.

A winding assembly for a transformer, in particular with a medium operating voltage of Um≥79.5 kV, wherein the winding assembly includes at least one winding, which ends in a winding conductor, where the winding conductor is connected to a switching line, which is configured to interconnect the winding to other windings, and where the connection of the switching line to the winding conductor is arranged inside the winding so as to reduce the danger of partial discharges and flashovers in the high-voltage end-line region for high-temperature applications.

A coil electronic component includes a body having first to fourth surfaces, an insulating substrate disposed in the body, coil portions disposed on opposing surfaces of the insulating substrate, respectively, a first lead-out portion connected to one of the coil portions and exposed from the first and third surfaces, a second lead-out portion connected to another of the coil portions and exposed from the second and third surfaces, and first and second external electrodes covering the first and second lead-out portions, respectively. The insulating substrate includes a support portion supporting the coil portions, a first end portion extending from the support portion and including end surfaces respectively exposed from the first and third surfaces and spaced apart from each other, and a second end portion extending from the support portion and including end surfaces exposed from the second and third surfaces and spaced apart from each other.